Day Time Seasonal Variation of Ozone and Its Association with Methane at Different Pressures over Barrow, Alaska  

作　　者：Nikunj Jaitawat Vimal Saraswat Nikunj Jaitawat;Vimal Saraswat(Department of Physics, Bhupal Nobles’ University, Udaipur, India)

机构地区：[1]Department of Physics, Bhupal Nobles’ University, Udaipur, India

出　　处：《Atmospheric and Climate Sciences》2022年第2期462-474,共13页大气和气候科学（英文）

摘　　要：This study has explored the seasonal day time variations of the two most important trace gases involved in global warming i.e., Methane (CH₄) and Ozone (O₃). Since solar activities also play a vital role in the formation of ozone, and hence solar flux data is also consulted in the present paper. Here we have discussed, day hours seasonal variation of O₃, solar flux and CH₄ at different pressures for four different seasons i.e., winter, summer, autumn and spring. We have evaluated the correlation between O₃, solar flux and CH₄ over an American station “Barrow, Alaska” for a period of 18 years and conclude that in every season of the year, CH₄ shows linear increment with a good significance level above 95%. The autumn season shows a good correlation between solar flux and O₃ with a maximum value of 0.53 in October and a minimum value of 0.34 in November month. In the winter season, CH₄ shows linear increment with a significance level above 95% at every pressure height. We also conclude that O₃ shows an increment trend in March and April months, but its negative trend is found in May month of the spring season.This study has explored the seasonal day time variations of the two most important trace gases involved in global warming i.e., Methane (CH₄) and Ozone (O₃). Since solar activities also play a vital role in the formation of ozone, and hence solar flux data is also consulted in the present paper. Here we have discussed, day hours seasonal variation of O₃, solar flux and CH₄ at different pressures for four different seasons i.e., winter, summer, autumn and spring. We have evaluated the correlation between O₃, solar flux and CH₄ over an American station “Barrow, Alaska” for a period of 18 years and conclude that in every season of the year, CH₄ shows linear increment with a good significance level above 95%. The autumn season shows a good correlation between solar flux and O₃ with a maximum value of 0.53 in October and a minimum value of 0.34 in November month. In the winter season, CH₄ shows linear increment with a significance level above 95% at every pressure height. We also conclude that O₃ shows an increment trend in March and April months, but its negative trend is found in May month of the spring season.

关 键 词：Surface Ozone METHANE Solar Flux Climate and Season 

分 类 号：P73[天文地球—海洋科学]